package cn.tedu.sp02.controller;

import cn.tedu.sp01.pojo.Item;
import cn.tedu.sp01.service.ItemService;
import cn.tedu.web.util.JsonResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.util.List;
import java.util.Random;

@RestController
@Slf4j
public class ItemController {
    @Autowired
    private ItemService itemService;
    @Value("${server.port}")
    private int port;

    @GetMapping("/{orderId}")
    public JsonResult<List<Item>> getItems(@PathVariable String orderId) throws Exception {
        log.info("server.port="+port+", orderId="+orderId);

        ///--设置随机延迟
//        if(Math.random()<0.6) {
            long t = new Random().nextInt(5000);
            log.info("item-service-"+port+" - 暂停 "+t);
            Thread.sleep(t);
//        }
        ///~~

        List<Item> items = itemService.getItems(orderId);
        return JsonResult.ok(items).msg("port="+port);
    }
//    @Autowired
//    private HttpServletRequest request;
//    // 获取订单的商品列表
//    @GetMapping("/{orderId}")
//    public JsonResult<List<Item>> getItems(@PathVariable String orderId) {
//
//        List<Item> items = itemService.getItems(orderId);
//        return JsonResult.ok().data(items).msg(String.valueOf(request.getLocalPort()));
//    }
    /*
    @RequestBody
         完整地接收请求协议体数据，再转成 List<Item>
     */
    // 减少商品库存, 使用 postman 测试post请求
    @PostMapping("/decreaseNumber")
    public JsonResult<?> decreaseNumber(@RequestBody List<Item> items) {
        itemService.decreaseNumber(items);
        return JsonResult.ok().msg("减少商品库存成功");
    }


}
